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FLOOD10780 (3)
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FLOOD10780 (3)
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Last modified
11/23/2009 2:11:32 PM
Creation date
5/21/2007 4:02:32 PM
Metadata
Fields
Template:
Floodplain Documents
County
Delta
Community
Delta County and Unincorporated Areas
Title
FIS - Delta County and Unincorporated Areas
Date
3/15/1984
Prepared For
Delta County
Prepared By
FEMA
Floodplain - Doc Type
Current FEMA Regulatory Floodplain Information
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<br />Peak flows of the larger historical floods on the North Fork <br />Gunnison River are shown below (Reference 9). <br /> <br />Year Date Peak Flow (cfs) <br />1922 May 6 5,1301 <br />1928 May 13 6,4501 <br />1929 May 15 7,3101 <br />1932 May 12 8,5901 <br />1937 May 15 4,7202 <br />1938 May 16 5,3602 <br />1941 May 31 5,8502 <br />1944 May 16 5,8502 <br />1952 May 4 5,3202 <br />1957 June 4 7,8602 <br />1962 May 13 4,8802 <br /> <br />IMeasured at u.s. Geological Survey stream gage No. 1330 near Paonia <br /> <br />2Measured at u.s. Geological Survey stream gage No. 09132500 near Somerset <br /> <br />The earliest reference to a flood on Uncompahgre River comes from <br />the settlers who founded the City of Delta in the early 1800s. <br />At that time, an Indian squaw, Chipeta, wife of the famous Ute <br />Chief Ouray, stated that within her lifetime of approximately 50 <br />years she had seen the Uncompahgre Valley at Delta "flooded from <br />bluff to bluff" (Reference 5). <br /> <br />Records show that, since the turn of the century, notable high <br />flows occurred on Uncompahgre River in 1921, 1927, 1938, 1941, <br />1944, 1947, 1957, 1973, and 1975. The largest known flood, <br />estimated peak flow of 5,140 cfs as recorded at the Colona stream <br />gage (U.S. Geological Survey gage No. 09147500), occurred in mid- <br />June 1921 as a result of snowmelt. Based on the results of this <br />study, the 1921 flood is estimated to have been slightly larger <br />than the lOO-year frequency flood. The only notable cloudburst <br />flood of record occurred in July 1923. Peak flows of the larger <br />historical floods on the Uncompahgre River are shown below <br />(Reference 5). <br /> <br />8 <br />
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